Helmet.



C. M. EDELHAUSEN.

HELMET. I APPLICATION FILED JULY 3. i914. 1,154,494. Patented Sept. 21, 1915;

3 SHEETS-SHEET I.

c. M. EDELH'AUSEN.

HELMET.

APPLICATION FILED. JULY 3. 1914.

Patent dSe ptr 21", 1915;

3 SHEETS-SHEET 2.

c. M. ED'ELHAUSEN.

HELMET. APPLICATION FILED JULY 3.1914.

Patented Sept. 21, 1915.

3 SHEETS-SHEET a.

- awwwwboz 0,M EZe Zhauseh man CHAR-LES MATTHIEU EDELHAUSEN, 0F LONG- ISLAND CITY, NEW YORK.

HELMET.

Specification of Letters Patent.

Application filed July 3,1914. Serial No. 848,831.

To all whom it may concern Be it known that 1, CHARLES M. EDEL- HAUSEN, a subject of the Emperor of Germany, residing at Astoria, Long Isl-and City, in the county of Queens andbtate of New York, have invented certain new and useful Improvements in Helmets; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it a-ppertains to make and use the same.

This invention comprehends certain new and useful improvements in helmets and has for its primary object to provide a device of this character which will be of improved "and simplified construction and which w1ll be formed in such manner that a supply of air may be stored between the inner and The invention has for another object to provide a helmet of this character Whichwill be constructed in such manner that it will readily adjust itself to the head and upper portion of the body of the person to whom it is applied and will be of such form as to prevent the surrounding atmosphere from reaching the head of said person.

Theinvention has for a further objectto provide a device of this character which will be of such construction that the stored air between the inner and outer sections of the toprovide a device of this character which i will be constructed in such manner that the air, after being inhaled -nd exhaled by the party using the helmet, may find a ready es- I cape from the helmet without danger of mixing with the fresh pure air being fed to the mouth and nostrils of the party.

With these and other objects in view as will become more apparent as the descrip- "'tion proceeds, theinvention consists in certain novel features of construction, combination and arrangement of parts as will be hereina fter more fully described and claimed.

For a complete understanding of my invention, reference 'is to be had to the fol- Patented Sept. 21, 1915.

lowing description and accompanying draW-- I ings, in which.

Figure l' is a front elevation of the complete device, Fig. 2 is an enlarged vertical sectional view on the plane of line 2-2 of Fig. 1, Fig. 3 is a verticalsectional view. on

the plane of line 33 of Fig. 2, Fig. 4 is a fragmentary top plan view, and Fig. 5 is an enlarged detail sectional view on the plane of line 55 of Fig. 3, showing the construction of the inlet valve in the filling opening.

'Referring in detail to the drawings by numerals, l designates the inner wall and 2 the outer wall of the upper dome-shaped construction of helmet, and it .will be understood that the walls 1 and 2 are formed of metal or. other suitable material and are suitably reinforced by a pair of curved reinforcing plates 3 positioned between the same and slightly inclined, said plates 3 meeting at the front and back of the dome and having suitable openings 4 to form communication between the upper central chamber 5 of the helmet and the second chamber 6 extending around the lower portion of the upper dome-shaped section of said helmet. It will also be understood that the "lower edge of the dome-shaped section of the helmet is closed by extending the lower edge 7 of the inner wall 1 outwardly and securing the same to the. corresponding edge of the outer wall 2.

'lVhen the helmet is in position upon a persons head, the inner wall 1 of the upper dome-shaped section of the helmet rests upon the persons head and the helmet is retained in proper spaced relation with respect to the partys face, by means of a spacing strip 8 formed .of rubber or other suitable material and secured t0 the inner face of the wall 1 at the front thereof and directed inwardly for engagement against the persons forehead, as will be clearly understood bysight members, it being understood that said members 10 are opposite the persons eyes when the helmet is in proper position. I have also provided a pair of sleeves 11 be- I plate 2 of the upper dome-shaped section of the helmet is a valve tube 12 which has a valve opening 13 in its lower end, wh le a cap 14: is removably positioned upon the upper or outer end of said tube 12. v

The tube 12 is secured in the opening 15 formed in said wall 2 by being threaded through the closure ring 16 secured around the opening 15 and against the opposite faces of said wall 2, as clearly shown in Fig. 5.

Slidably mounted within the valve tube 12 g is a valve stem 17 which engaged through the guides 18 mounted in saidstem17 and has mounted on its inner end a valve 1!) which is normally retained against the valve opening 13 by a coil. spring 20 or the like engaged around said valve stem 17 and having one end secured thereto.

Secured to the bottom edge 7 of the upper helmet section is a lower helmet section including an inner wall 21 and an outer wall 22 which have their lower edges connected and are provided with a plurality of perforations 23 through which air exhaled by the party Wearing. the helmet may readily escape.

The upper section of the helmet is pro- 'vided in its lower portion and at one side with atransversely extending sleeve 2t which has its outer end seeured against the inner face of the outer wall 2, while its inner end'is secured against the inner face of the inner wall '1. of said upper section. The inner end of the sleeve 24 is closed by a. plate' 25 which has a valve opening 26 therein against which is secured a slide valve 27 within the sleeve 24 and resting upon the valve rod 28 whieh is in turn pivoted intermediate its ends to the perforated.transverse partition '29 positioned centrally in the sleeve 24 and through which the valve rod 28 extends. The outer end of the valve rod also projects through an opening 30 in the outer wall' and has a knob 31 mounted upon its outer extremity, by means of which said rod may be swung upwardly or downwardly upon its central pivot to move the slidevalve 27 to position above or below the valve opening 26 and thereby allow a fresh supply of air from the sleeve 24 to enter the upper section of the helmet and travel around the persons head to the mouth and nostrils of said person at the front of the helmet.

It will be understood'that the fresh air enters the sleeve 24; by way ofthe opening 32 in the upper portion thereof from between the inner wall 1 and outer wall 2 of the upper section of the helmet, and is prevented from escaping from the outer end ofsaid sleeve 24, by means of a closure plate mounted upon and movable with the valve rod 28 and positioned against the outer wall 2 to cover the opening 30 through which the valve rod 28 extends.

After the air fed to the interior of the helmet through-the valve opening 26 has been inhaled and then exhaled by the party wearing the helmet, said airvwill, after it has been exhaled, pass out of the helmet by way of the openings 3+which are provlded with a suitable flap valve 34' secured to the inner wall 21 of the lower. section of the helmet which, it will be understood, is formed of rubber or other suitableflexible material, which will press tightly against the back of the partys head and the shoulders to prevent smoke and fumes from entering the bottom of said helmet and traveling upwardly therein. The exhaled air, after passing through the opening 3i, will travel downwardly in the lower section of the helmet and escape through the escape opening 23, previously mentioned.

The front ofthe lower section of the helmet is retained in proper spaced relation with the partys face by means of the spacing cushion secured to the inner face of the inner wall 21 of said lower section and having its inner edge resting in the groove between the lower lip and the chin, as clearly shown in Fig. 2.

It will be readily seen that owing to the material from which the cross section of the helmet is formed, said lower section will at all times be securely engaged against the wearer and will automatically adplst-itself to said wearer.

inner and outer walls of the uppersection,

an inlet valveprojecting into the outer wall of said upper-,sectwn, means carried by the upper section for controlling the pas age of air from between the walls thereof to the.

interior of the" helmet, said lower section secured to theuipper section and formed of a flexible resilient material adapted to press against the shoulders of the wearer, means openings through which for separating the lower section from the upper section, said lower section having its inner and outer Walls connected at their lower edges and provided with airescape' openings,

air exhaled by the party uslng the helmet space between the Walls, a flap valve arranged over said openings preventing air from being .inhaled therethrough,' and means in the upper section of said helmet for spacing the front of the helmet from the head positioned therein. 2. A device of the class describedwomprising a helmet including an upper. section formed of inner and outer Walls, means be-- tween said inner and outer Walls'for reinforcing the same, an inlet valveprojecting the outer wall of said upper section to into control the entrance of air throughthe chamber formed by the inner and outer walls-of said section, means mounted in the upper section for controlling the passage of airfrom between the Walls thereof to the interior of the helmet, a lower section sesaid inner Wall provided with escapes into the cured to said upper section and formed of outer W'alls having their lower edgesconnected and provided with air escape-openings, said helmet being provided with openings in its inner walls through which air exhaled by the party using the helmet es- 4 capes into the space between the Walls, a flap valve arranged over said openings'preventing air from being inhaled therethrough, 'the"loWer section adapted to e gage the back of the headpositioned in said therein.

In testimony whereof I afiix my signature nnrtmusnr 'helmet, and means for spacing the front v of the helmet from the head positioned 

